Main take-aways
Understanding log logic is difficult.
Accuracy greatly depends on the location of the value being estimated in relation to the magnitude.
Strong anchoring and rounding effects.
Participants were resistance to estimate between grid lines on the log scale.
Inaccurate representation of equating spatial distance to quantitative difference.
Inaccurate first level estimations can lead to consequences in estimations which require participants to make comparisons between two points.
Estimates were subjective to the simulated data set.